Wire-nail-making machine



(No Model.) '3 Sheets Sheet 1.

0.0;KEsT -WIRB NAIL MAKING MACHINE.

No; 594,883. Patented-Dec. 7, 1897.

we warns PEYERS o0 wowmmo" WASHINGTON. u. c.

' (No Model) 0.0-.KESTY. WIRE NAIL MAKING MACHINE.

No. 594,883. Patented Deo.'7,-l89'7.

ATENT FFTQEG CHARLES O. KESTY, OF SUN BURY, PENNSYLVANIA, ASSIGNOR OFONE-HALF TO LOUISIANA P. JOHNSON AND PIEROY LITTLE, OF NORTHUMBERLAND,

PENNSYLVANIA.

SPECIFICATION forming part of Letters Patent No. 594,883, dated December'7, 1897. Application filed December 12, 1896. Serial No. 615,522. (Nomodel.)

To all whom it may concern:

Be it known that I, CHARLES C. Knsrv, a resident of Sunbury, in thecounty of Northumberland and State of Pennsylvania, have inventedcertain new and useful Improvements in \Vire-Nail-Making Machines; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to 1 0 which it appertains to make and use the same.

My invention relates to an improvement in wire-nail-m akin gmachines,the objects being, primarily, to simplify the parts of themachinery, to lessen noise, and reduce the cost of the machinery and theexpense of the output.

With these objects in view my invention consists in certain novelfeatures of construction and combinations and arrangement of parts,whichwill be hereinafter described, and

pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan view. Fig. 2 is a Viewin side elevation, and Figs. 3, 4, 5, 6, and 7 are detailviews.

A represents the frame of the machine, and

2 5 B B are the legs forming a support therefor.

The numeral 1 indicates a crank-shaft j ournaled in pillow-blocks 2 2 0nthe frame. This shaft is provided with a balance-wheel 3 and fast andloose pulleys 4 and 5, respectively.

A heading-lever 6 is pivotally connected to the frame of the machine,and a connectingrod 7 extends from the free end of this lever to a crankon the crank-shaft, and in this manner a positive stroke is given thelever with 3 5 each revolution of the crank shaft. This heading-levercarries a hammer 8. This hammer has a screw-threaded shank which turnsinto a threaded hole in lever 6, this arrangement being provided so thatthe hammer may be adjusted to just the right relation to the wireholding dies. A jam nut 9 on the threaded shank is employed to lock thehammer in its adjustment. By means of this construction the movement ofthe parts may be regulated with great precision, andnot only is thethickness of the head of the nail exact, but also the throw of thehammer is such that there is no striking of parts except of the blow ofthe hammer upon the end of the wire to upset it and form the head. Inthis way the entire impact falls on the end of the wire and not upon anypart of the machinery, as it does in apparatus in which there isemployed a sliding hammer.

Cooperating with the hammer are the point 5 5 holding and cuttingdevices, as Well as the gripping-dies, and these parts willnow bedescribed.

The numeral 10 indicates the header-block. This block is rigidly securedto the frame of the machine by means of bolts 11 11 and is backed on therear bybrackets 12 12. In this header-block the wire-gripping dies areheld by means of the clamp-plate 13, the latter being held in place bysuitable bolts 14 14. Both 6 5 the header-block and the clamp-plate arefurnished with the undercut inner edges 15 15, and these edgesconstitute seats or guides for the gripping-dies 16 16. There are a pairof these dies, one being stationary and the other movable, for grippingand holding the wire while it is being cut, headed,'and pointed.- Theopening for the wire is half formed in each die, and walls of theopenings are furnished with several projections to prevent the wire fromslipping in the dies. Between the dies are interposed a pair of spiralsprings which tend all the time to normally force the movable dieoutward to release the wire. This tendency is c0unteracted,however, bylever mechanism when the wire is to be gripped, and this mechanism willnow be described. A die-operating lever 17 is pivoted to the frame ofthe machine at a point op posite or in line with the outer end of themovable gripping-die and extends outward transversely beyond one side ofthe frame of the machine. A rocking pin 18 has a species ofball-and-socket connection with the movable die and the die-operatinglever, and to effect a proper adj ustment of these partswith relation toeach other a set-screw 19, having one of the sockets in one of itsends,-is secured into the lever. This is turned by applying a wrench toits outer end and setting the screw to the proper point. A spiral spring20, interposed between the headerblock and die-operating lever, tends tonormally throw the lever away from the movable gripping-die in order toallow the latter to move outward when not otherwise hindered from doingso.

A lever 21 is fulcrumed on a pin 22, projecting from one side of themachine. This lever 21 is in position to engage beneath the protrudingend of the die-operating lever, whereby to slide or rock the movablegripping-die inward at the proper time to grip and hold the wire. Thislever 21 is operated by means of a peripheral cam 23 on the crankshaft,an antifriction-roller being connected with the lever 21. The cam is soconstructed that the lever 21 is vibrated with each complete revolutionof the cam. The lever is normally held against the cam by means of aspring 24, and the tension of this spring may be regulated by means of anut 25.

The numerals 26 26 indicate a pair of point holding and operatinglevers. These levers are pivotally supported on the adjustable pivots 2727. These levers are normally held yieldingly apart by means of a spiralspring 28, and they carry at their free ends the pointertools 29 29.These tools are adjusted by means of a series of set-screws 30 30,located at the sides and at one end thereof. The levers 26 26 areoperated by means of a pair of operating-levers 31 31, and these in turnby the cams 27 27, located on the outside of the bearings of maincrank-shaft 1. The levers 31 31 are provided with antifriction-rollers28 28, and the cams by engaging them force them outward with eachrevolution of the cams, the spring 35, between the two levers, acting tohold them yieldingly inward. It may be stated in this connection thatone of the cams 27 is a part of the peripheral cam 23, the two togetherconstituting a double or duplex cam. These levers 31 31 are connectedwith the point holding and operating levers by means of rocking pins 3232, which have balland-socket connections with said parts.

A steel spring-clearer is connected at one end with the frame of themachine. The free end of this clearer is located in position to removethe completed nail and is operated by the roller 45, attached to therocking heading-lever. As the rocking lever moves forward the rollerdepresses the spring-clearer, causing the free end to remove the nail,and when the rocking lever recedes the clearer returns to its normalposition. The advantage of the roller is that it bears constantly uponthe clearer, so that there is no noise caused by its being constantlystruck and restruck by the hammer, as heretofore in one species ofapparatus. A set of wire-straightening rollers 47 47 are located at theother end of the frame. The plate 011 which one set of these rollers islocated is pivoted, and a cam 36 is employed to lock the plate in theposition shown in Fig. 1.

The wire is fed by means of the catch or dog 37. This catch or dog ispivoted to a lever 33. The dog operates in connection with a stationarystud 39 on said lever, and an adj ustable pin l0 on the dog bites uponthewire and feeds it forward. This pin is held in place adjustably bythe set-screw 41, and a spring 42 holds the dog yieldingly in position.The lever 38 is operated by means of a pitman 43, which is adj ustablyconnected to a disk 44 on the main crank-shaft.

The operation is as follows: The wire is inserted between the rollers ofthe straightening device, and as the machine starts the feed-lever isoscillated. This causes a feed of the Wire to the cutter, pointer, andheader. These parts are all operated and controlled by the maincrank-shaft. The wire is cutoff the proper length. The head is thenformed and then the wire is fed forward the length of the nail. It isthen out off and the point formed. The length of the nail is regulatedand adjusted by means of setting the end of the pitman 43 relative tothe disk 44.

It is evident that slight changes might be made in the form andarrangement of the several parts described without departing from thespirit and scope of my invention, and hence I do not wish to limitmyself to the exact construction herein set forth; but,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a wire-nail-making machine, the combination with a frame, a pairof point-holding levers pivoted thereto, a pair of operating-levers 31,31, for operating the pointinglevers, gripping-dies, a die-operatinglever, a lever 21 for operating this die-operating lever, and aheading-lever pivoted to the frame, of a rotary shaft having connectionwith the heading-lever for vibrating it, and cams on the shaft forvibrating levers 21 and 31.

2. In a nail-making machine, the combination with gripping-jaws and ahammer or heading-tool, of a spring-clearer adapted to throw hangingnails out of the machine, a rocking lever which carries the hammer, saidclearer adapted to be operated by a roller also carried by the lever,substantially as set forth.

3. In a nail-making machine, the combination with rocking point-holdinglevers, of operating-levers, cams located outside the bearings of shaftfor moving the operating-levers, rocking pins having a species ofball-andsocket connection between the rocking pointholding levers andthe cam-operated levers,

10 of shaft, one cam being a double or duplex cam for operating two ofthe levers, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscrib ing witnesses.

CHARLES C. KESTY.

Witnesses J. SIMPSON KLINE, PIEROY LITTLE.

